package cn.webrx;

public class Str7 {
    public static void main(String[] args) {
        //System.out.println("java".repeat(-2));
        System.out.println("java".repeat(0));
        System.out.println("java".repeat(1));
        System.out.println("java".repeat(2));
        System.out.println("java".repeat(3));
        for (int i = 1; i < 20; i+=2) {
            System.out.println("*".repeat(i));
        }


    }
}
